diff --git a/libs/bytes/bytes.go b/libs/bytes/bytes.go
index 5f1382758..86d5d965e 100644
--- a/libs/bytes/bytes.go
+++ b/libs/bytes/bytes.go
@@ -70,27 +70,23 @@ func (bz HexBytes) Format(s fmt.State, verb rune) {
 	}
 }
 
-// // This is the point of Bytes.
-// func (bz HexBytes) MarshalJSON() ([]byte, error) {
-// 	fmt.Println("In MarshalJSON")
-// 	s := strings.ToUpper(hex.EncodeToString(bz))
-// 	jbz := make([]byte, len(s)+2)
-// 	jbz[0] = '"'
-// 	copy(jbz[1:], s)
-// 	jbz[len(jbz)-1] = '"'
-// 	return jbz, nil
-// }
+func (bz HexBytes) MarshalJSON() ([]byte, error) {
+	s := strings.ToUpper(hex.EncodeToString(bz))
+	jbz := make([]byte, len(s)+2)
+	jbz[0] = '"'
+	copy(jbz[1:], s)
+	jbz[len(jbz)-1] = '"'
+	return jbz, nil
+}
 
-// // This is the point of Bytes.
-// func (bz *HexBytes) UnmarshalJSON(data []byte) error {
-// 	fmt.Println("In UnmarshalJSON, data: ", string(data))
-// 	if len(data) < 2 || data[0] != '"' || data[len(data)-1] != '"' {
-// 		return fmt.Errorf("invalid hex string: %s", data)
-// 	}
-// 	bz2, err := hex.DecodeString(string(data[1 : len(data)-1]))
-// 	if err != nil {
-// 		return err
-// 	}
-// 	*bz = bz2
-// 	return nil
-// }
+func (bz *HexBytes) UnmarshalJSON(data []byte) error {
+	if len(data) < 2 || data[0] != '"' || data[len(data)-1] != '"' {
+		return fmt.Errorf("invalid hex string: %s", data)
+	}
+	bz2, err := hex.DecodeString(string(data[1 : len(data)-1]))
+	if err != nil {
+		return err
+	}
+	*bz = bz2
+	return nil
+}